Projection printing easel



May 18, 1948. RMFF Em 2,441,843

PROJECTION PRINTING EASEL Filed Oct. 26, 1945 I5 Sheets-Sheet 2 May 1a,1948. 4 A. R AlFF ETAL 2,441,843

PROJECTION PRINTING EASEL Filed 001;. 26, 1945 3 Sheets-Sheet 3 7 JannPatented May 18, 1948 raom'o'rroN ram'rmc. EASEL Andrew Raifl, Brooklyn,and Sylvia s. Robbins and Victor G. Robbins, New York, and Isidore S.Rosen, Brooklyn, N. Y.

Application October 2c, 1945, Serial No. 624,858

This invention relates to a novel construction of easel or frame forholding sensitized paper subject to projection printing thereon ofenlargements from photographic negatives.

The invention has for an object to provide an improved easel or frameadapted to receive and position sensitized paper in exposed relation tophotographic enlarger aparatus, whereby a light projected image from anegative mounted on said apparatus may be properly focused upon thepaper to print thereon a desired enlargement of the negative subject.

6 Claims. (01. 88-24) The invention has for another object to provide animproved easel or frame for the purposes stated to which sheets ofselected size of sensitized paper to be printed may be quickly, easilyand successively mounted in and removed therefrom, whereby to produce 'adesired number of enlarged prints from a given negative subject.

A further object of the invention is to provide a novel unitaryconstruction. of easel or frame which may be produced from sheet metalor other sheet material; said easel or frame being reversible, wherebyto provide at both faces thereof selectively usable paper receiving andholding means, one-face of the easel or frame being formed to provide apaper receiving and holding means adapted to accommodate a maximum sizeof paper, while the opposite face of the easel or frame is subdivided toprovide a plurality of paper receiving and holding means adapted torespectively accommodate various reduced or smaller selected sizes ofpaper; each paper receiving and holding means "being provided with apaper admission mouth opening outwardly at an end of the easel or frame,and the I easel or frame ends having novel offset visor or hood flangesexteriorly disposed to overhang said paper admission mouths, whereby toshield the same against entrance therethrough to extraneous light rayslikely to interfere with the paper printing light projected image, andsaid visor or hood flanges, by reason of their offset relation to theadmission mouths of the paper receiving and holding means, alsoproviding finger access to said admission months for entering paper inor withdrawing paper from said receiving and holding means.

Another oblect of the invention is to provide a simple, compact andlight-weight and yet strong and durable unitary easel or frame for thestated purposes, the same comprising a minimum num ber of parts formedand assembled in the manner hereinafter more particularly described.

An illustrative embodiment of the invention is shown in the accompanyingdrawings, in which:

Fig. 1 is an elevational plan view of one face of the novel easel orframe made according to this invention; Fig, 2 is an end elevationalview, as viewed from the lower end of Fig. 1; Fig. 3 is a sideelevational view; Fig. 4 is an elevational plan view of the oppositeface of the easel or frame; Fig. 5 is a. transverse sectional view,taken on line 5-5 in Fig. 4; and Fig. 6 is a. longitudinal sectionalview, taken on line 66 in Fig. 4.

Fig. 7 is an enlarged fragmentary longitudinal sectional view at one endof the easel or frame, showing a sheet of paper located in the paperreceiving and holding means of maximum size, and access of fingers formanipulating the same within the space intermediate the visor or hoodflange members at said end of the easel or frame;

Fig. 8 is an enlarged fragmentary perspective view' of a comer portionof the easel or frame; and Fig. 9 is a perspective view of a separableadapter element for'modifying the size of a paper receiving and holdingmeans of the easel or to be subjected to projection printing say, forexample, 11 x 14 inch paper. Longitudinal side marginal portions of saidmain plate 10 are doubled. or folded back thereon, whereby to providelateral paper stops l2 and relatively narrow masking flanges [3 tooverlie side marginal portions of said paper supporting area ll. Saidmasking flanges ii are disposed in spaced parallel plane relation tosaid paper supporting area ll,

- so as to form papen-receiving guides or runcomprising a bottom or footpiece ii, an upstandmg web section 16 and an outwardly projecting 3visor or hood flange l1. The respective ends of each bottom or footpiece I! is spot-welded or otherwise secured to the respectivecorresponding end portions of said masking flanges l2, so as to beunitary with the same and thus with said main plate i0. Each bottom orfoot piece I! is oifset by saidmasking flanges i2 from the ad- Jacentend marginal portions of said main plate It, whereby to cooperate withthe latter so as to form end masking flanges spaced thereabove, andwhereby to also provide an open mouth l8 (see Fig. 8) through whichpaper may be admitted to the paper supporting area II. The outwardlyprojecting visor or hood flanges l1 are spaced an appreciable distanceabove and so as to overhang said open mouths I8, whereby to shield thelatter against inward entrance therethrough of extraneous light rays.

Cooperating with the oposite face of the main plate i is means fordividing said face into a plurality of variously smaller sizes of papersupporting areas; each such area being bounded at suitable points bypaper masking and stop means. The means for so dividing said oppositeface of the main plate ill comprises a dividing plate 20 formed fromsheet metal or other suitable sheet material. Said dividing plate 20 isprovided along its longitudinal sides with downwardly offset footingflanges 2| joined thereto by perpendicular wall sections adapted toprovide lateral paper stops 22. Said footing flanges 2| are spot-weldedor otherwise aiiixed to said main plate l0 so that the dividing plate isunitary with the latter. The main body of said dividing plate is thusdisposed to overlie said opposite face of the main plate In in spacedparallel plane relation thereto. At one end thereof, the body of saiddividing plate 20 is cut away to provide a comparatively large opening23 to expose an underlying paper supporting area 24 of said main plateI! for projection printing of a comparatively large size of paper, e. g.8 x inch paper. At the opposite end thereof, the body 01 the dividingplate is cut away to provide a plurality of further reduced openings 25and 26 to respectively expose underlying paper supporting areas 21 and28 of said main plate In for projection printing of further reducedsizes of paper, e. g. respectively for 5 x 7 inch paper and 3% x 5 inchpaper.

To separate said several paper supporting areas 24, 21 and 28 one fromanother, and to bound the sam at suitable points with paper masking andstop means, said dividing plate is provided with a transverse section toextend between the paper supporting area 24 and the paper supportingareas 21 and 28. An interior portion of said section is depressed toprovide a division boss 22 of suitable length, adapted to abut the mainplate l0. Perpendicular side walls of said division boss 22 providepaper stops 20 which bound the respective inner ends of said papersupporting areas 24, 21 and 24. In like manner, said dividing plate isprovided with a longitudinal section to extend between the p persupporting areas 21 and 22. An interior portion of said longitudinalsection is depressed to provide a division boss 2! of suitable lengthextending intermediate said transverse division boss 29 and an outlyingend of the main plate l0. Said division boss 2i is adapted to abut themain plate l0. Perpendicular side walls of said division boss 2| providepaper stops 22 which bound inner sides of the respective papersupporting areas 21 and 28. Internal marginal portions of the openings22, 25 and 28 provide mask- 4 hang and are spaced from the papersupporting areas 24, 21 and 28.

The respective outer marginal end portions of the dividing plate 20 arealigned with corresponding outer marginal end portions of the main platel0, and the former are disposed in spaced parallel plane relation to thelatter, thus providing, intermediate the same, open mouths 24 (see Fig.8), through which paper may be admitted to the paper supporting areas24, 21 and 22, as the case may be.

Formed in connection with the respective outer ends of said dividingplate 20, preferably as integral parts thereof, are upstanding websections II, from the upper margins of which extend outwardly projectingvisor or hood flanges 2.. Said visor or hood flanges 26 are spaced anappreciable distance above and so as to overhang said open mouths 24,whereby to shield the latter against inward entrance therethrough ofextraneous light rays. Said visor or hood flanges 28 are disposedparallel to and spaced apart from the opposite visor or hood flanges l1previously described.

The marginal end portions of the main plate ID are provided inassociation with the mouth entrances leading to the paper supportingareas ll, 24, 21 and 28 with indented notches 21, preferably of a depthnot exceeding the width of the adjacent masking flanges. Said notches 21provide finger access to paper lodged within the easel or frame upongiven paper supporting areas I I, 24, 21 and 28.

To complete the easel or vframe, and so as to provide level and uniformmarginal support thereof, either side up, upon a table or bed ofprojection printing apparatus with which it is used, side bars 28 areprovided to extend along longitudinal sides of the main plate Ill, saidside bars being of a height equivalent to the spaced height 01' thevisor or hood flanges |128 so as to be flush therewith. End portions ofsaid side bars 22 are aligned with and between the adjacent ends of thevisor or hood flanges l1-26, whereby to provide cooperativeperpendicular visor or hood flange portions 29, operative to furthershield the mouths l8 and 24 against inward entrance therethrough ofextraneous light rays. Said side bars 28 may be amxed to the main anddividing plates l0 and 20 in any suitable manner so as to be unitarytherewith. In a preferable form thereof, however, said side bars 28 areof channel shape in cross section, and end portions of their peripheralflanges are severed from main portions thereof to provide anchoring ears4. inwardly projecting from the visor or hood flange portions 29 so asto lap end portions of the visor or hood flanges "-28, to which saidanchoring ears 40 are spot welded or otherwise suitable secured.

The paper supporting areas ll, 24, 21 and 22 may be painted or otherwisecoated with material of white or other selected light color to provide asuitable ground upon which to test focus a light projecting image to beprinted, preparatory to the printing operation.

In the use of the easel or frame of this invention, if it is desired toobtain an enlarged print of maximum size, e. g. 11 x 14 inches, theeasel or frame is laid upon the table or bed of the pro- Jectionprinting apparatus with the paper supporting area ll of the main platel0 upward (see Fig. 1). The paper is then inserted through either mouthI. to move through the guides or runways ing flanges 22 of suitablewidth, and which over- I4, whereby to overlie said supporting area I iin stopped and masked operative positionthereon. whereupon the printingop tion is proceeded with. Ifit is desired to obtain an enlarged printor any or the smaller sizes, the easel or frame is reversed. or turnedover so as to lay upon the table or bed oi the projection printingapparatus of the main plate ll upward (see Fig. 4) whereupon a selectedsmaller size of paper is inserted through a mouth It to lie upon anappropriate supporting area in stopped and marginally masked position,whereaiter the printing operation may be proceeded with. a v

If prints smaller than the smallest size normally provided for. or orsize intermediate the sizes normally provided for, by the papersupporting areas, are desired, said supporting areas may be suitablyreduced to desired size by application thereto one or more separablereducer plates. An illustrative form or reducer plate is shown in Fig.9, and comprises a flat body 4! of suitable dimensions bordered on oneside by an oil'set masking flange 42 Joined thereto by a perpendicularwall section adapted to provide a paper stop ll. It will be obvious thatsuch form of reducer plate may be deposited upon a paper supporting areato be reduced therr oy, and the rear margin 44 of its body ll inserterbeneath a, masking flange and against a paper stop at a side 01' saidsupporting area, whereby to hold the retainer plate in place and opposeits masking flange l2 and p p r stop 43 to a masking flange and paperstop of an opposite side of said supporting area. being thus disposed toreceive and position therebetween the p per of reduced size.

It will be observed, by inspection of Fig. '7 more particularly, thatthe novel arrangement of visor or hood flanges surrounding the entrancemouths leading to the paper supporting areas of the opposite faces ofthe main plate in, not only provide light barriers to shield said mouthsagainst entrance therethrough oi extraneous light rays, but also provideadequate finger receiving space whereby finger access to margins ofpaper deposited in the easel or frame and accessible through the notches31 of the main plate ends is facilitated when the operator desires toenter or withdraw the paper.

From the above description it will be appreciated that the instantinvention provides a novel unitary construction of easel or frame, whichmay be conveniently and efflciently employed in the printing oiphotographic enlargements in a variety of selected sizes.

Having now described our invention, we claim:

1. A reversible projection printing easel comprising a flat rectangularmain plate having side marginal portions thereof in-turned over one lacethereof to provide lateral masking flanges and paper stop means, visormembers each comprising an inwardly projecting foot-piece, an upstandingweb and an exteriorly projecting visor flange, said visor members beingrespectively afllxed by their footpieces to and between correspondingend portions of said intumed lateral masking flanges to overlie marginalend portions of said main plate in spaced relation thereto, whereby toprovide intermediate entrance mouths adapted to pass paper onto saidface of said main plate, said exteriorly projecting visor flanges beingthereby respectively disposed in offset overhanging relation to saidrespective entrance mouths sons to shield the latter against entrancetherethrough of extraneous light rays, a dividing plate having inwardlyoffset foot flanges along its sides with the paper supporting areas 24,21 and II and secured to said main plate, said dividing plate having aplurality oi openings or various dimensions to overlie variously sizedpaper sup-' porting areas of said opposite face of the main plate,inwardly depressed division bosses intermediate said openings of thedividing plate adapted to abut said main body, marginal portions of saidopenings or the dividing plate being adapted to provide masking flanges,corresponding ends of said main and dividing-plates being spaced apartto provide entrance mouths leading to the last mentioned papersupporting areas,

and additional visor members at the respective ends of said dividingplate each formed by an upstanding web and an exteriorly projectingvisor flange, the visor flanges of said additional visor members beingdisposed'in outwardly oflset overhanging relation to said last mentionedentrance mouths so as to shield the latter against entrance therethroughof extraneous light rays.

2. A reversible projection printing easel as deflned in claim 1, whereinsaid main plate is provided in its ends with indented notches throughwhich marginal portions of paper overlying the same are fingeraccessible, opposed visor flanges being substantially spaced apart,whereby to facilitate access of fingers to paper exposed by said notchesto the grasp thereof.

3. A reversible projection printing easel as deflned in claim 1,including side bars extending along the sides of said main plate atright angles thereto, said side bars being or a height substantiallyequivalent to the distance of separation of opposed visor flanges so asto be substantially flush therewith, and end portions of said side barsbeing disposed to close the ends of the space intermediate said visorflanges.

4. A reversible projection printing easel as defined in claim 1, whereinsaid main plate is provided in its ends with indented notches throughwhich marginal portions of paper overlying the same are fingeraccessible, opposed visor flanges being substantially spaced apart.whereby to facilitate access of fingers 'to paper exposed by saidnotches to the grasp thereof, side bars extending along the sides ofsaid main plate at right angles thereto, said side bars being of aheight substantially equivalent to the distance of separation of opposedvisor flanges so as to be substantially flush therewith, and endportions of said side bars being disposed to close the ends of the spaceintermediate said visor flanges.

5. A reversible projecting printing easel all parts of which arepermanently. united in fixed immovable relation one .to another toprovide a unitary structure comprising a main plate provided on one facethereof with paper. receiving and holding means adapted to accommodate amaximum size of paper and on the opposite face thereof with a pluralityof selectively usable paper receiving and holding means of variousdimensions adapted to accommodate paper of correspondingly reducedsizes, all said paper receiving and holding means having permanentlyopen entrance mouths respectively opening from ends of said main plate,and visor means operative to shield said open entrance mouths againstentrance therethrough of extraneous light rays, said visor meanscomprising web portions disposed substantially in the vertical plane ofsaid open entrance mouths to extend therefrom relative to opposite sidesof said main plate, exteriorly projecting visor flanges extendingoutwardly from said web portions in planes parallel to that 7 of saidmain plate, whereby to be disposed in oilaet overhanging and shieldingrelation to said open entrance mouths, and hood flange P rtionsinterconnecting corresponding ends of said visor flanges to close theends of the space intermediate the latter.

6. A reversible projection printing easel all arts or which arepermanently united in iixed immovable relation one to another to providea unitary structure comprising a main plate provided on one face thereofwith paper receiving and holding means adapted to accommodate a maximumsize of paper and on the opposite face thereo! with a plurality ofselectively usable paper receiving and holding means of variousdimensions adapted to accommodate paper of correspondingly reducedsizes, all said paper receiving and holding means having permanentlyopen entrance mouths respectively opening from ends of said main plate,and visor means operative to shield said open entrance mouths againstentrance therethrough of extraneous light rays, said visor meanscomprising web portions disposed substantially in the vertical plane ofsaid open entrance mouths to extend therefrom relative to opposite sidesor said main plate, exteriorly projecting visor flanges extendingoutwardly 8 from said web portions in planes parallel to that oi saidmain plate, whereby to be disposed in onset overhanging and shieldingrelation to said open entrance mouths, side bars extending along thesides of said main plate at right angles thereto, said side bars beingof a height substantially equivalent to the distance oi separation oiopposed visor flanges so as to be substantially flush therewith, and endportions of said side bars being disposed to closethe ends of the spaceintermediate said visor flanges.

ANDREW RAIFI". SYLVIA B. ROBBINS. VICTOR G. ROBBINS. ISIDORE B. ROSEN.

REFERENCES CITED The following references are oi record in the tile oi'this patent:

UNITED STATES PATENTS Number Name Date 1,197,780 Van Doran Sept. 12,1916 1,816,906 Kroedel Feb. 8, 1927 2,187,381 Lane Jan. 16, 19402,235,483 Porcelli et a1 Mar. 18, 1941 2,348,999 Peterson May 16, 1944

